Earthquake · Reviewed by USGS

M1.8 earthquake 57 km E of Warm River, Idaho

A magnitude 1.8 earthquake struck 57 km E of Warm River, Idaho at Sep 28, 2026, 13:47 UTC, at a depth of 12 km. The epicentre was 103 km (64 mi) ENE of Rexburg.

Details

Magnitude	1.8 ml
Time	Sep 28, 2026, 13:47 UTC
Depth	11.8 km
Coordinates	44.212, -110.616
Felt reports	0
Tsunami flag	None
Source	USGS event page

Fig. 1The epicentre and other earthquakes within 100 km, since the day before

01 — Nearby

Nearest cities

02 — Around it

Other earthquakes within 100 km

Other earthquakes within 100 km since the day before this event
Magnitude	Location	Distance	Depth	Time
1.2	24 km SSE of Mammoth, Wyoming	64 km / 40 mi	depth 7 km	Oct 25, 04:49 UTC
1.5	35 km S of Silver Gate, Montana	71 km / 44 mi	depth 12 km	Oct 22, 17:16 UTC
1.4	68 km ESE of West Yellowstone, Montana	28 km / 17 mi	depth 12 km	Oct 21, 15:59 UTC
1.1	35 km ESE of West Yellowstone, Montana	41 km / 26 mi	depth 6 km	Oct 19, 14:36 UTC
1.0	30 km ESE of West Yellowstone, Montana	42 km / 26 mi	depth 8 km	Oct 19, 03:48 UTC
1.9	35 km S of Silver Gate, Montana	71 km / 44 mi	depth 14 km	Oct 18, 21:25 UTC
1.1	4 km ESE of Hebgen Lake Estates, Montana	73 km / 45 mi	depth 12 km	Oct 17, 15:48 UTC
1.6	34 km E of West Yellowstone, Montana	49 km / 30 mi	depth 10 km	Oct 16, 16:52 UTC
1.1	35 km E of West Yellowstone, Montana	47 km / 29 mi	depth 5 km	Oct 16, 16:52 UTC
1.2	29 km SSW of Silver Gate, Montana	72 km / 45 mi	depth 6 km	Oct 15, 15:53 UTC
1.1	29 km SSW of Silver Gate, Montana	71 km / 44 mi	depth 6 km	Oct 15, 15:52 UTC
1.5	53 km SE of West Yellowstone, Montana	18 km / 11 mi	depth 2 km	Oct 15, 10:02 UTC
1.2	51 km NE of Alta, Wyoming	14 km / 8 mi	depth 9 km	Oct 14, 04:05 UTC
1.8	46 km ESE of West Yellowstone, Montana	27 km / 17 mi	depth 3 km	Oct 14, 02:22 UTC
1.3	51 km NE of Alta, Wyoming	12 km / 8 mi	depth 9 km	Oct 13, 12:57 UTC
1.8	40 km SSW of Silver Gate, Montana	62 km / 39 mi	depth 5 km	Oct 12, 01:15 UTC
1.2	47 km SE of Mammoth, Wyoming	51 km / 32 mi	depth 4 km	Oct 10, 10:38 UTC
2.0	24 km NE of Kelly, Wyoming	55 km / 34 mi	depth 13 km	Oct 9, 11:36 UTC
1.1	45 km ESE of West Yellowstone, Montana	32 km / 20 mi	depth 5 km	Oct 9, 08:55 UTC
1.0	4 km SSE of West Yellowstone, Montana	59 km / 37 mi	depth 13 km	Oct 7, 12:12 UTC
1.0	8 km NE of West Yellowstone, Montana	63 km / 39 mi	depth 11 km	Oct 4, 23:49 UTC
1.9	58 km E of Warm River, Idaho	1 km / 1 mi	depth 12 km	Oct 4, 23:32 UTC
1.4	8 km NE of West Yellowstone, Montana	64 km / 39 mi	depth 11 km	Oct 4, 22:02 UTC
1.1	7 km ENE of Hebgen Lake Estates, Montana	75 km / 47 mi	depth 8 km	Sep 30, 08:58 UTC
1.3	58 km E of Warm River, Idaho	2 km / 1 mi	depth 12 km	Sep 29, 07:42 UTC

USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.